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-rw-r--r--tests/api/api-band-test.c223
1 files changed, 223 insertions, 0 deletions
diff --git a/tests/api/api-band-test.c b/tests/api/api-band-test.c
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index 0000000000..5ccba4f766
--- /dev/null
+++ b/tests/api/api-band-test.c
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+/*
+ * Copyright (c) 2015 Ludmila Glinskih
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * draw_horiz_band test.
+ */
+
+#include "libavutil/adler32.h"
+#include "libavcodec/avcodec.h"
+#include "libavformat/avformat.h"
+#include "libavutil/imgutils.h"
+
+uint8_t *slice_byte_buffer;
+uint8_t slice_byte_buffer_size;
+int draw_horiz_band_called;
+
+static void draw_horiz_band(AVCodecContext *ctx, const AVFrame *fr, int offset[4],
+ int slice_position, int type, int height)
+{
+ int i;
+ const AVPixFmtDescriptor *pix_fmt_desc;
+ int chroma_w, chroma_h;
+ int shift_slice_position;
+ int shift_height;
+
+ draw_horiz_band_called = 1;
+
+ pix_fmt_desc = av_pix_fmt_desc_get(ctx->pix_fmt);
+ chroma_w = -((-ctx->width) >> pix_fmt_desc->log2_chroma_w);
+ chroma_h = -((-height) >> pix_fmt_desc->log2_chroma_h);
+ shift_slice_position = -((-slice_position) >> pix_fmt_desc->log2_chroma_h);
+ shift_height = -((-ctx->height) >> pix_fmt_desc->log2_chroma_h);
+
+ for (i = 0; i < height; i++) {
+ memcpy(slice_byte_buffer + ctx->width * slice_position + i * ctx->width,
+ fr->data[0] + offset[0] + i * fr->linesize[0], ctx->width);
+ }
+ for (i = 0; i < chroma_h; i++) {
+ memcpy(slice_byte_buffer + ctx->width * ctx->height + chroma_w * shift_slice_position + i * chroma_w,
+ fr->data[1] + offset[1] + i * fr->linesize[1], chroma_w);
+ }
+ for (i = 0; i < chroma_h; i++) {
+ memcpy(slice_byte_buffer + ctx->width * ctx->height + chroma_w * shift_height + chroma_w * shift_slice_position + i * chroma_w,
+ fr->data[2] + offset[2] + i * fr->linesize[2], chroma_w);
+ }
+}
+
+static int video_decode(const char *input_filename)
+{
+ AVCodec *codec = NULL;
+ AVCodecContext *ctx= NULL;
+ AVCodecParameters *origin_par = NULL;
+ uint8_t *byte_buffer = NULL;
+ AVFrame *fr = NULL;
+ AVPacket pkt;
+ AVFormatContext *fmt_ctx = NULL;
+ int number_of_written_bytes;
+ int video_stream;
+ int got_frame = 0;
+ int byte_buffer_size;
+ int result;
+ int end_of_stream = 0;
+
+ draw_horiz_band_called = 0;
+
+ result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL);
+ if (result < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Can't open file\n");
+ return result;
+ }
+
+ result = avformat_find_stream_info(fmt_ctx, NULL);
+ if (result < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n");
+ return result;
+ }
+
+ video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
+ if (video_stream < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n");
+ return -1;
+ }
+
+ origin_par = fmt_ctx->streams[video_stream]->codecpar;
+
+ codec = avcodec_find_decoder(origin_par->codec_id);
+ if (!codec) {
+ av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n");
+ return -1;
+ }
+
+ ctx = avcodec_alloc_context3(codec);
+ if (!ctx) {
+ av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n");
+ return AVERROR(ENOMEM);
+ }
+
+ result = avcodec_parameters_to_context(ctx, origin_par);
+ if (result) {
+ av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n");
+ return result;
+ }
+
+ ctx->draw_horiz_band = draw_horiz_band;
+ ctx->thread_count = 1;
+
+ result = avcodec_open2(ctx, codec, NULL);
+ if (result < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n");
+ return result;
+ }
+
+ fr = av_frame_alloc();
+ if (!fr) {
+ av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n");
+ return AVERROR(ENOMEM);
+ }
+
+ if (strcmp(codec->name, "flv") && strcmp(codec->name, "mpeg4") && strcmp(codec->name, "huffyuv")) {
+ av_log(NULL, AV_LOG_ERROR, "Wrong codec\n");
+ return -1;
+ }
+
+ byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 32);
+ byte_buffer = av_malloc(byte_buffer_size);
+ if (!byte_buffer) {
+ av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
+ return AVERROR(ENOMEM);
+ }
+
+ slice_byte_buffer = av_malloc(byte_buffer_size);
+ if (!slice_byte_buffer) {
+ av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
+ return AVERROR(ENOMEM);
+ }
+ memset(slice_byte_buffer, 0, byte_buffer_size);
+ slice_byte_buffer_size = byte_buffer_size;
+
+ av_init_packet(&pkt);
+ do {
+ if (!end_of_stream) {
+ if (av_read_frame(fmt_ctx, &pkt) < 0) {
+ end_of_stream = 1;
+ }
+ }
+ if (end_of_stream) {
+ pkt.data = NULL;
+ pkt.size = 0;
+ }
+ if (pkt.stream_index == video_stream || end_of_stream) {
+ got_frame = 0;
+ result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt);
+ if (result < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n");
+ return result;
+ }
+ if (got_frame) {
+ number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
+ (const uint8_t* const *)fr->data, (const int*) fr->linesize,
+ ctx->pix_fmt, ctx->width, ctx->height, 1);
+ if (number_of_written_bytes < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
+ return number_of_written_bytes;
+ }
+ if (draw_horiz_band_called == 0) {
+ av_log(NULL, AV_LOG_ERROR, "draw_horiz_band haven't been called!\n");
+ return -1;
+ }
+ if (av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes) !=
+ av_adler32_update(0, (const uint8_t*)slice_byte_buffer, number_of_written_bytes)) {
+ av_log(NULL, AV_LOG_ERROR, "Decoded frames with and without draw_horiz_band are not the same!\n");
+ return -1;
+ }
+ }
+ av_packet_unref(&pkt);
+ av_init_packet(&pkt);
+ }
+ } while (!end_of_stream || got_frame);
+
+ av_packet_unref(&pkt);
+ av_frame_free(&fr);
+ avcodec_close(ctx);
+ avformat_close_input(&fmt_ctx);
+ avcodec_free_context(&ctx);
+ av_freep(&byte_buffer);
+ av_freep(&slice_byte_buffer);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ if (argc < 2)
+ {
+ av_log(NULL, AV_LOG_ERROR, "Incorrect input: expected %s <name of a video file>\nNote that test works only for huffyuv, flv and mpeg4 decoders\n", argv[0]);
+ return 1;
+ }
+
+ av_register_all();
+
+ if (video_decode(argv[1]) != 0)
+ return 1;
+
+ return 0;
+}
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